Description
astral-tokio-tar is a tar archive reading/writing library for async Rust. Versions of astral-tokio-tar prior to 0.5.6 contain a boundary parsing vulnerability that allows attackers to smuggle additional archive entries by exploiting inconsistent PAX/ustar header handling. When processing archives with PAX-extended headers containing size overrides, the parser incorrectly advances stream position based on ustar header size (often zero) instead of the PAX-specified size, causing it to interpret file content as legitimate tar headers. This issue has been patched in version 0.5.6. There are no workarounds.
Problem types
CWE-843: Access of Resource Using Incompatible Type ('Type Confusion')
Product status
References
github.com/...io-tar/security/advisories/GHSA-j5gw-2vrg-8fgx
github.com/...-sh/uv/security/advisories/GHSA-w476-p2h3-79g9
github.com/...ommit/22b3f884adb7a2adf1d3a8d03469533f5cbc8318
github.com/edera-dev/cve-tarmageddon
